Apparatus for applying liquid to covers of receptacles.



No. 823,391. PATENTED JUNE 12, 1906.

W. G. BUHLES.

APPARATUS FOR APPLYING LIQUID TO COVERS OP REGBPTAOLES. APPLICATIONFILED APRIL. 1904.

2 SHEETS-SHEET l.

ANDREW. a. GRAHAM 00.. PHOYG-LIYHOGHAPHERS, wnsmumou. n. a

No. 823,391. PATENTBD JUNE 12, 1906. W. C. BUHLBS.

APPARATUS FOR APPLYING LIQUID TO COVERS OP REGEPTACLES.

APPLICATION FILED APR.4. 1904.

2 SHEETS-SHEBT 2.

1 I 10 Flgii [mruun 1% i 12 UNITED STATES PATENT OFFICE.

WILLIAM C. BUHLES, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR, BY MESNEASSIGNMENTS, TO HERMETIC CLOSURE CO., OF CHI- CAGO, ILLINOIS.

Specification of Letters Patent.

L'atented June 12, 1906.

Application filedApril 4:, 1904. Serial No. 201,5

To aZZ whom it may concern.-

Be it known that I, WILLIAM C. BUHLES, a citizen of the United States,residing at San Francisco, in the county of San Francisco and State ofCalifornia, have invented certain new and useful Improvements inApparatus for Applying Liquid to Co ers of Receptacles, of which thefollowing is a specification.

My invention relates to an apparatus for applying a liquid to the coversor caps of cans, jars, and other receptacles. If, for example, liners orpacking-disks are to be secured to such covers, the work can beexpedited and a more satisfactory result obtained by applying the glue,mucilage, paste, or other adhesive substance to the cover itself bymeans of my apparatus instead of to the disk or liner by hand.

Besides the economy in labor, there is a great saving in material, asthe adhesive liquid which is used is applied only in the exact positionrequired and over no more surface than is absolutely necessary to givethe best results. Moreover, the liners being free from glue can beinserted automatically or by hand with great rapidity.

In some instances when composition packing-gaskets are associated withthe covers it is desirable to soften such gaskets before applying thecovers to the receptacle, and this can be done by moistening them withany suitable liquid. Under some circumstances a liquid flux might beapplied to such a cover previous to solderin Therefore, my apparatus isnot confined to any one or more of the purposes mentioned, which havebeen referred to as illustrative only of different adaptions of which itis capable.

Embodiments of my invention are shown in the accompanying drawings, inwhich Figure 1 is a vertical section on the line :0 0c of Fig. 2. Fig. 2is a top plan. Fig. 3 is a vertical section of the rotary moisteningheadon line y y of Fig. 4:. Fig. 4 is a plan of the same. Fi 5 is a verticalsection illustrating a mod' cation of the same.

Any convenient frame or table 1 supports a vessel 2, which contains theliquid to be applied to the covers. A hollow foot 3 of the receptacleextends down through the table and forms a bearing for the verticalshaft 4,

having a belt-pulley 5. Power is applied to this pulley in any suitableway. I have shown a belt 6, guided by pulleys 7 8, journaled in abracket 9. The upper end of shaft 4 extends into the receptacle and isthreaded to fit the correspondingly-threaded boss 11 on the rotary head12, which constitutes the moistening device. This head is a hollowcircular casting having a rim or seat 13. The wall of the casting isslightly undercut, as shown at 14, so that fine vertical passages 10 canbe drilled through the rim communicating with the interior. As I preferto leave the casting open at the top and close it with an interior plate15, I provide a shoulder 16 for such plate to rest upon, as shown. Theentire casting might be formed in one piece with a closed top; but bothas a matter of convenience in manufacture and in order to have readyaccess to the interior for cleaning, &c., I prefer to use theclose-fitting top plate 15. The upper rim of the closing-plate is shownas projecting above the perforated edge of the head and is rounded, andthe plate itself is depressed within said rim. This is because theparticular head shown in the drawings is adapted to receive a cover a ofa particular shape. The cover has a central sunken panel 17, a circularsurrounding bead 18, a flat seat 19, and a downwardly-projecting flange20. I do not, therefore, limit the shape of the head to the form shown,and changes required to adapt it to covers of other forms are within thespirit of my invention.

An opening is made through the head to admit liquid to its interior, andI prefer to provide such opening with the projecting scoop 21. When theparts are in position, as shown in Fig. 1, this scoop is immersed in theliquid. The rotation of the head causes the liquid to enter it, and thecentrifugal force throws said liquid outwardly and upwardly, so that itrises through and exudes from the passages 10. If a cover a be fittedand held stationary upon the rotary head, its flat seat 19 will receivethe exuding liquid, which will be spread upon the whole surface of theseat by the rotary rubbing action. As fast as one cover is moistened andremoved another can be applied, as there is a constant feed through fromsetting up a rotary rising movement of the liquid in the main vessel, Iplace within Sftld vessel the annular stationary disk 22, having wings23. The wings break up any rotary current, while the overhanging diskacts as a guard against any tendency of the liquid to rise along thewall of the main vesse rise and exude through the passages 10. The

operator in applying the cover presses down upon it, depressing theclosing-plate, and as the hollow head is full of liquid a forcing act1ontakes place, which may be desirable when thick liquids are employed orwhen for any reason the automatic centrifugal feed is not sufficientlypositive.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

A device for moistening covers, comprislng a hollow rotary head, havinga seat for the cover, means for admitting a liquid to said] head, andliquid-outlets through said sea 2. A device for the described purpose,comprising a vessel for holding a liquid, a hollow rotary head, apassage for admitting the liquid to the interior of said head, a seatfor the cover of a receptacle, and liquid-outlets through said seat.

3. A device for the described purpose, comprising a vessel for holding aliquid, .a hollow rotary head within the same, a passage for admittingliquid to the interior of said head, a seat for the cover of areceptacle, and liquid-outlets through said seat.

4. A device for the described purpose, comprising a hollow open-toppedrotary head, adapted to contain a li uid, openings in the upper edge ofsaid head for the escape of such liquid, and a receptacle for containingsaid liquid in which said head rotates.

5. In a device for the described purpose, a hollow, open-topped, rotaryhead, a plate for closing said open top, means for admitting liquid tosaid hollow head, and outlets in the rim of said head for the escape ofsaid liquid.

6. The combination with the stationary liquid-containing vessel, of ahollow head, rotary therein and having an'opening for the admission ofliquid, and passages formed in the wall of said head for the escape ofsuch liquid.

7. The combination with a stationary liquid-containing vessel, of ahollow rotary head having its upper end formed so as to guide and seatthe cover of a receptacle, outlets for liquid at such upper end, and anopening for the admission of liquid to the interior of said head.

8. In a device for the described purpose, a liquid containing vessel, arotary head therein, a scoop projecting from said head and communicatingwith its interior, a seat for covers at the upper end of said head, andpassages from the interior through said seat.

9. In combination with a stationary liq-uidcontaining vessel and with arotary head therein, wings in said vessel for preventing said head fromsetting up rotary cur-rents within said vessel.

10. In combination with a stationary liquid-containing vessel, and witha rotary head therein, a guard-disk extending inwardly from the rim ofsaid vessel.

11. In combination with a stationary liquid-containing vessel, and witha rotary head therein, a removable structure comprising a guard-diskhaving wings, substantially as and for the purpose set forth.

12. In an apparatus for the described purpose, a hollow circular rotaryhead having outlets for the escape of liquid, and .a depressible closingplate or piston adjacent to the liquid-outlets and adapted to receivethe cover of a receptacle.

13. In an apparatus for the described purpose, a hollow rotary headhaving openings for the admission and escape of liquid, a depressibleclosing-plate adjacent to the-liquidoutlets, and a spring opposing thedepression of said plate. 1

14. In an apparatus for the described purpose, a hollow rotary headhaving openings for the escape of liquid in combination with adepressible plate forming a seat for the cover of a receptacle, andacting, when depressed, as a piston to force liquid through saidopenmgs.

15. In an apparatus for the described purpose, a hollow circular rotaryhead having openings for the escape of liquid in combination with adepressible plate forming a seat for the cover of a receptacle, andacting, when depressed, as a piston to force liquid through saidopenings and a spring opposing the depression of said plate.

In testimony whereof I have afiixed my signature, in presence of twowitnesses, this 26th day of March, 1904:.

WILLIAM C. BUHLES.

Witnesses:

L. W. SEELY, A. W. MILLER.

ITO

